40423433 has 8 divisors (see below), whose sum is σ = 42997248. Its totient is φ = 37871424.

The previous prime is 40423429. The next prime is 40423447. The reversal of 40423433 is 33432404.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40423433 - 2² = 40423429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40423399 and 40423408.

It is not an unprimeable number, because it can be changed into a prime (40423133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1541 + ... + 9122.

It is an arithmetic number, because the mean of its divisors is an integer number (5374656).

Almost surely, 2^40423433 is an apocalyptic number.

It is an amenable number.

40423433 is a deficient number, since it is larger than the sum of its proper divisors (2573815).

40423433 is a wasteful number, since it uses less digits than its factorization.

40423433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10903.

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 40423433 is about 6357.9425131091. The cubic root of 40423433 is about 343.1977230692.

Adding to 40423433 its reverse (33432404), we get a palindrome (73855837).

The spelling of 40423433 in words is "forty million, four hundred twenty-three thousand, four hundred thirty-three".